Malicious PDF — malware analysis report

Static analysis result for SHA-256 248cbfa1c8b62bb6…

MALICIOUS

PDF

51.3 KB Created: 2020-08-07 05:06:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95da4ed5ef8e8e80aaa7aea0fbd762d2 SHA-1: e3bd64fdc45fdd647b725d8e37ef4b296f0e6ef2 SHA-256: 248cbfa1c8b62bb61cf36c9b262e7d73379d2a06dfc163f6a59392b9f7547730
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, suggesting a tactic to manipulate search engine results or distribute malicious content. The primary malicious URL identified is https://ttraff.com/pify?keyword=solo+guitar+playing+noad+pdf, which is likely used to redirect users to further malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=solo+guitar+playing+noad+pdf In PDF document text
    • http://files.alissahartenbaum.com/uploads/1/3/1/4/131482916/satogemimuxu_gubakumozeb.pdfIn PDF document text
    • http://files.thoughtfulduck.com/uploads/1/3/2/6/132695280/4013712.pdfIn PDF document text
    • http://files.yogawithdaba.com/uploads/1/3/1/4/131438059/xawir.pdfIn PDF document text
    • http://files.thepatriotoutpost.net/uploads/1/3/0/8/130874055/9e7473dc816c6de.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6043/6887/files/nagoxakutuvukudepolit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3349/3655/files/87161985204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9454/0452/files/50242241048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6473/7433/files/wetotixebifotuvoxox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3964/5093/files/35872207368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/73312261595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/63877943982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4089/7189/files/mejuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8555/files/85621996737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5252/3929/files/bizenupoxipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5543/2348/files/lununixazamomuriba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7840/9622/files/41613012737.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D19 5000 bytes
SHA-256: d0e77dac65578d6b2a115b85a89bc328124179f864042ed1c4d6462e6277e04d
font_01_sfnt_off00007e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E25 17020 bytes
SHA-256: 21ab569bc322e86dd33ecec00be934244864faa20806b34ba71b629d783686f4
font_02_sfnt_off0000afbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFBF 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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